Method of treating electrodes.



I i!) all whom it c'riaqz come-r71: l

LOUIS H. FLAIJIGERS, OF EEGEWOGD PARK. PENN$YL1 ANIA ASSEGNOR, BY.ZESlM-E ASSIGNlVIENTS, T 'WESTLNGHQUSE STGRAGE BATTER-Y COMPANY, ACG'ZPQEZPLTEGE? 0F NEV-f YORK.

life Drawin g,

Speeificafion of Letters letent.

Application filed February 23, 1909.

i Fin? 1? L a w n,

lvE'ETI-IOD OF TREATING ELECTROBES.

Serial No. 179,566.

Be it known that 1 Louis iliimmnne, a citizen of (he Unified Slides, andn resident oi" Edgewoed Park. in lhe county of illegheny and Stnte ofPennsylvenim have made new and useful invention in Ilviethods ofllreeting Electrodes, of which the following is it specification.

This invention relates to secondary or storage batteries and moreparticularly to electrodes or storage lmilery plates of the pasted type.'ihere are two types of pasted plates employed in storage batteries. Theei'nninon. type or that most in use (zeniprises a grid which eeinpletedeiiher by i casting or some other suitable process and is which oxid ishen applied. The second. type which is he more uncommon lype is generalll'lzlO'Wl'l as the box or receptacle 1y e and it is ordinarily made byeoniplet- 11g :1 portion of t 11) grid then applying the mid to becomeactive and linen adding the enmining poi-lien of the grid and fasteningit to the first portion by welding, by rivet lug or by some othersuitable method the reultant plate generally being relatively thin. lnereason for employing the cumin-ens nieiihod of applying l'he pnsle oroxid t0 the box type oi plate in the manner specified is heenuse itoelieved that it is impossible t0 apply the pnslie or oxid 1e ihecompleted grid. The common form of box type if plate consists of asupporting and e0ndueting interior grid and sides or covers of leadveneer whieh he e relatively small holes punched onQtherwiseformedtherein. ha been found lhiat the lead venee" covers previded with smallh'oles or ii do not admit of a ready application at the paste from Lie Le ior after the grid sides and cover are 'ioled Therefore, i; has

V ice is :1 pply lire a or in lUl, wild li, 1d OH, .ilk assembled orbefore the lnsl.

i o and rich generell nia-ierml) have b l have ioin'id iiluii. thin washor paste, Uni-l; :1 .i'hiid eonhiining active material in suspensionrather than n stiii' paste of lead oxid the so culled ex:- huustedplates eonl'aining some active inaiQllill which have heretofore ihrowninto the scrap may be easily rei ted thus saving the labor and expenseof remelting the old gries and remaking lhemi I have i also found thatthe iiuliYG material may he applied to new plates in the sznne way:prefer to use for pasting either the old or new grids a paste of Thinnerconsistency lhnn ordinarily employed, heretofore said 3 pastebeingpreferably made of; lead ox'uis er oxid and WillQl to "nivli may beruled if desired sonninert innlei'izil For ena el lamp black or finelrnowdered. leuol i ind llml the pest end results when adapted in heworker made of a con isle-nu, by Pl brush lluzL is about he (to. creamand find that; the paste is plied Willi u. 1i brush rnl'lier than wtrowel and the; the operation is :ineili by placing the plate upon aporous n or pulp hoard ,\-'herel: y some the from the pa 'le is absorbedse :is cause the paste to q The of ihe v l stead of the lrewel alsoavoids rlie n J) oi? the plate becoming denied or 1113" while the pasleis being applied. The ease ing or repzisting of the plate is carriedquickly and [minlerrnpbedlyg lhnl is to s2. the active n'mmri zilwerl-zed in iliiengli. the openings in 'lhe wall of the plate at one opration, the water or :1 large portion oi? I being curried away by ihevorous um; er pulp he:u l. By tlieifein i'he werl' has beenaeeuinplisheden ugh in been :ihsin'hed la: eave :i solid mes in shereeeptaele of lheplnte. After the pnsi'ed they may be stored dii' erhardened and seesened hv or emnir-niinn sulfide or any other suitable welie.

Y. hile l have le eri bed 0i": pasted plate, i. is id be do innit my il0 l1 periie out reserve the i hl i0 Pl'tltflliX ihe n I I )iele isadapted to through openings in removing the plate 10 Worn out storagebattery ing some active ma placing the plate to ture removing bedterial, which consists in i be treated 11 on a mois- I then workingliquid,

containing active material in suspension,

ewall of the p ate and from the bed after superfluous moisture hasbeenremoved from I the active material.

-2. The herein described'method of repastplates containlng some activematerial, which consists in placing the plate to tu're removing bed betreated upon a moisthen brushing liquid,

containing active material in suspension, through openings in a wall ofthe p ate, amt-' r oving the plate from the bed 7 superfluous moisturehas been removed the active material. 1 I

In testimony whereof, I havefhe'reunt subscribed my name thisQOth day ofFebruary, 1909.

